And David’s heart smote him after that he had numbered the people. And David said unto the LORD, I have sinned greatly in that I have done: and now, I beseech thee, O LORD, take away the iniquity of thy servant; for I have done very foolishly.

After David had numbered the troops, his conscience was stricken and he said to the LORD, “I have sinned greatly in what I have done. Now, O LORD, I beg You to take away the iniquity of Your servant, for I have acted very foolishly.”